feat: try to set rule

scie-grammar/src/rule.rs

-use crate::inter::IRawRepository;
+use crate::inter::{IRawRepository, IRawGrammar};
 
 pub struct RuleFactory {}
 
@@ -9,3 +9,14 @@ impl RuleFactory {
 
     pub fn create_capture_rule() {}
 }
+
+// todo: trait with types
+// https://users.rust-lang.org/t/impl-trait-with-generic-function-for-generic-struct/27083/2
+pub trait IRuleRegistry {
+    fn get_rule(&self, pattern_id: number) -> Rule;
+    // fn register_rule(&self);
+}
+
+pub trait IGrammarRegistry {
+    fn get_external_grammar(&self, scope_name: String, repository: IRawRepository) -> Option<IRawGrammar>;
+}
\ No newline at end of file